Rod-clamp.



J. J. RIPPER.

ROD CLAMP.

APPLICATION IILBD APR. 25, 1913.

1,088,858.. Patented Jan. 6, 1914.

COLUMBIA PLANDGRAPH CO..WA5H1N 0000000 c,

STAT

JOHN J. RIPPER, 0F FELLOWS, CALIFORNIA.

ROD-CLAMP.

To all whom it may concern:

Be it known that I, JOHN J. RIPPER, a citizen of the United States,residing at Fellows, in the county of Kern and State of California, haveinvented new and useful Improvements in Rod-Clamps, of which thefollowing is a specification.

This invention relates to improvements in rod clamps and has particularapplication to an adjuster and clamp or grip for use in conjunction withthe pump or polish rods of Artesian, oil and other deep well pumps.

In carrying out the present invention, it is my purpose to provide anadjuster and grip of the class described by means of which the polishrod of the pump may be connected to the walking beam and the rodadjusted and gripped in any desired position.

It is also my purpose to provide a device of the class set forth whichwill be con structed in such manner as to effectively grip the polishrod and whereby the possibility of mutilating or defacing the rod,incident to the adjusting thereof, will be eliminated. Furthermore, Iaim to provide a rod adjuster and clamp for polish rods of Artesian andoil wells which will embrace the desired features of simplicity,eliiciency, durability and strength coupled with cheapness of cost inmanufacture and marketing and which may be readily installed, maintainedand manipulated.

With the above and other objects in view, the invention consists in theconstruction, combination and arrangement of parts hereinafter set forthin and falling within the scope of the claims.

In the accompanying drawing; Figure 1 is a view in front elevation of acombined rod adjuster or grip constructed in accordance with the presentinvention. Fig. 2 is a side elevation of the same. Fig. 3 is atransverse sectional view on the line 33 of Fig. 1,, and Fig. 4 is adetail perspective view of the clamping device.

Referring now to the accompanying drawing in detail, the numeral 1designates a metallic stirrup comprising resilient limbs 2 having theirupper ends connected through Specification of Letters Patent.

Application filed April 25, 1913.

Patented Jan. 6, 1914.

Serial No. 763,610.

the medium of a loop 3 encircling a rounded bearing bar or cross piece 4extending laterally of the opposite sides of the stirrup and designed tobe journaled in the usual bearings at one end of the walking beam. Thelimbs 2 normally tend to separate or move away from each other and areequipped at their free ends with jaws 5 formed with alining orcooperating grooves 6, 6 arranged in a vertical plane to receive thepiston or polish rod 7 of an Artesian or oil well pump.

In order that the jaws 5 may be drawn together so as to grip the polishrod, I employ a clamping device composed, in the present instance, of asubstantially rectangular collar 8 encircling the jaws 5, 5 and ofslightly greater cross sectional dimensions than the similar combineddimensions of the jaws 5. One end wall of this collar is formed with athreaded opening in which is mounted a set screw 9 having the inner endthereof adapted to seat within a depression 10 formed in the respectivejaw 5.

From the foregoing description taken in connection with the accompanyingdrawing, the construction and manner of employing my invention will bereadily appar ent. It will be seen that I have provided a rod adjusterand grip whereby the polish rod may be connected with the walking beamof the mechanism and the rod adjusted and gripped in any position whilestanding on the derrick floor. Furthermore, it will be observed that thejaws 5, 5 and the clamping device associated therewith are so correlatedand arranged as to minimize the possibility of mutilation or defacing ofthe polish rod.

I claim:

1. In a polish rod clamp, a metallic stirrup comprising resilient limbs,a loop con necting the upper ends of said limbs, a bear ing bar disposedwithin said loop and ex tending laterally of the opposite sides of saidstirrup, jaws carried by the free ends of said limbs and normally spacedapart under the action thereof, and means for drawing said jaws togetherto grip the polish rod.

2. In a polish rod clamp, a metallic stirrup comprising limbs spacedapart, a loop In testimony whereof I aiiix my signature connecting theupper ends of said limbs, a in presence of two Witnesses.

bearin bar dis )osed Within said 100 and projecting laterz illy from theopposite sides JOHN RIPPER of said stirrup, and jaws carried by the freeWitnesses:

ends of said limbs and designed to grip the R. N. HARRIS,

polish rod. W. J. HOLLAND.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

